Player Courtesies do they even exist in this game?

[Lstkaws]

I have had good and bad experiences, unfortunately mostly bad. Case in point, last night during a CM run the tank runs out and aggros ALL the mobs from the start, including the mobs you are not supposed to pull. He did not seem new, so I am immediately thinking he's a troll. Everyone wipes right off the bat. When we do get to the first boss he says BBL and just stands there. I politely explain to the group that I am not willing to carry this guy through the run and I will take the 15 minute lockout. I wish them all good luck and apologize. Then one of the other members said "fine, you are worthless anyway". I find about 25% of my runs with DF are good and 75% are bad. May just start running purely with FC from this point.